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Seasonality Analysis

24.21 -0.25 (-1.02%) 09/04/2026
Option Care Health, Inc. (OPCH)
Showing 2 years of seasonality data. To view all years, Upgrade to PRO plan!
Historical Prices Year-by-Year


Historical Returns (%) By Years/Months
YearJanFebMarAprMayJunJulAugSepOctNovDecMinMaxavg
20266.72-4.53-17.07-24.482.660.489.821.823.24   -24.489.82-2.37
2025 8.344.33-7.551.15-0.61-9.64-2.28-3.21-6.2319.482.44-9.6419.480.57
Summary
Avg Returns (%)6.721.91-6.37-16.021.91-0.070.09-0.230.02-6.2319.482.44-16.0219.480.30
Max Pos Return (%)6.728.344.33-7.552.660.489.821.823.24-6.2319.482.44-7.5519.483.80
Max Neg Return (%)6.72-4.53-17.07-24.481.15-0.61-9.64-2.28-3.21-6.2319.482.44-24.4819.48-3.19
Pos Occurances (%)10050500100505050500100100010058
Neg Occurance (%)0505010005050505010000010042
Advanced Seasonality
OPCH · 7 seasons · Jan 2020 – Sep 2026 · 1,678 sessions · split-adjusted closes
Next 1 month · Oct-5.04%17% positive · 6 seasons
Next 3 months · Oct–Dec+9.46%67% positive · 6 seasons
Next 6 months · Oct–Mar+7.67%83% positive · 6 seasons
Strongest monthFebmedian +3.84% · 71% hit
Weakest monthOctmedian -5.04% · 17% hit
Split-half stability-0.34unstable · 5/12 months agree
Sep month-to-date+3.24%seasonal median -2.73%
Key takeaways
  • Treat this calendar as weak evidence. The first half of the sample and the second half rank-correlate -0.34 across the twelve months — the pattern that held early did not hold late, which is what noise looks like.
  • Feb is the strongest month (edge 40/100, Weak): median +3.84%, mean +2.20%, higher in 5 of 7 years (71%), t = 0.75, p = 0.481.
  • Oct is the weakest month (edge 38/100, Weak): median -5.04%, mean -6.40%, lower in 5 of 6 years, t = -1.19, p = 0.288.
  • Best stretch of the year is Nov–Jan: median +21.64% compounded, positive in 4 of 6 seasons (67%), p = 0.132.
  • Worst stretch is Aug–Oct: median -10.63% compounded, positive in only 2 of 6 seasons (33%).
  • We are in Sep, historically a -2.73% median month with a 33% hit rate. Month-to-date OPCH is +3.24% — ahead of the seasonal norm.
  • Seasonal path from here: Oct -5.04% (17% hit), Oct–Dec +9.46% (67%), Oct–Mar +7.67% (83%) — medians of the compounded window return.
  • The median seasonal year peaks around Aug at +22.26%, troughs around Feb at -7.27% and finishes the year at +5.80% (5 complete years).
  • Best weekday is Tuesday at +0.298% a session (significant, p = 0.034); weakest is Thursday at -0.097%.
  • Turn-of-month (last 3 sessions plus first 3) averages -0.008% a session against +0.107% for the rest of the month — a -0.115% daily spread across 483 sessions.
  • By quarter, Q4 is the best (median +9.46%, 67% positive) and Q2 the worst (median -2.70%).
  • Risk is seasonal too: Apr is the most volatile month (53.8% annualised) and Dec the calmest (29.9%); participation peaks in Aug at +35% of the average month's volume.
  • Twelve months were tested at once, so the 5% bar is really 0.0042 after a Bonferroni correction — no month clears it. With 7 seasons of data, seasonality is context, not a trade on its own.
Seasonal compositethe shape of a typical year, trading day by trading day
Each complete year is re-based to the prior year’s closing price and stacked on a common trading-day axis. The line is the median year across 5 seasons (2021–2025); the shaded band is the inter-quartile range, so half of all seasons lived inside it. The mean path is available in the legend but is the wrong statistic for a single stock — one outlier year owns it.
Monthly significance tests, seasonal windows, calendar effects, cycle and volatility seasonality are part of the paid plan. Upgrade to PRO plan!

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